import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* 模拟了100米赛跑,10名选手已经准备就绪,只等裁判一声令下。当所有人都到达终点时,比赛结束。
* @author liuchao
*
*/
public class Actor {
public static void main(String[] args) throws InterruptedException {
//10名运动员
final CountDownLatch count = new CountDownLatch(10);
//java的线程池
final ExecutorService executorService = Executors.newFixedThreadPool(5);
for(int index=1;index<=10;index++){
final int number = index;
executorService.submit(new Runnable() {
public void run() {
try {
Thread.sleep((long) (Math.random()*10000));
System.out.println(number+": arrived");
} catch (InterruptedException e) {
e.printStackTrace();
} finally{
//运动员到达终点,count数减一
count.countDown();
}
}
});
}
System.out.println("Game Started");
//等待count数变为0,否则会一直处于等待状态,游戏就没法结束了
count.await();
System.out.println("Game Over");
//关掉线程池
executorService.shutdown();
}
}
运行结果
Game Started
5: arrived
1: arrived
2: arrived
3: arrived
8: arrived
4: arrived
6: arrived
9: arrived
7: arrived
10: arrived
Game Over
转载自:http://www.cnblogs.com/liuchao102/p/4383894.html